Therefore, it is necessary to choose one of the men who have been with us the whole time the Lord Jesus went in and out among us, beginning from John's baptism to the time when Jesus was taken up from us. For one of these must become a witness with us of his resurrection.'
So they proposed 2 men: Joseph called Barsabbas (also known as Justus) and Matthias. Then they prayed, 'Lord you know every one's heart. Show us which of these 2 you have chosen to take over this apostolic ministry, which Judas left to go where he belongs. Then they cast lots, and the lot fell to Matthias; so he was added to the eleven apostles."
The new apostle is. . .
This is a very important example of spiritual decision making. The 11 apostles prayed for the Lord to reveal to them His choice for a new replacement. Set up criteria consistent with the Bible, examine the alternatives, and pray for wisdom and guidance to reach a wise decision.